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SFP to RJ-45 converter

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SFP to RJ-45 converter

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

cbharis

2022-04-07 03:27:41 - last edited 2022-04-19 02:45:16

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Registered: 2022-04-07

SFP to RJ-45 converter

2022-04-07 03:27:41 - last edited 2022-04-19 02:45:16

Model: TL-SG3428

Hardware Version: V2

Firmware Version: 2.0.4

So I ran into something today. Quite interesting.. I actually have both TL-SG3428 and TL-SG3428MP

While I was setting up the TL-SG3428MP, I bought some 10Gtek SFP to RJ45 converter. I plugged one into port 28, and used it as my uplink port. I powered it on and viola.. Worked like a charm..

Powered it off.

I plugged another into port 27 and used it to connect my EAP. Powered it on, and it works!

I plugged another into Port 25 and was planning on connecting a NAS to the unit. Powered it on only to have the unit sit there for 3 minutes and never booted.

So I said to myself.. What's seems to be the problem here..

I remove all SFP converters and start with SFP port 25 and plug one in. Power it on and once again.. It will not boot.

I power it off and put it in SFP port 26 and power it on and it will fully boot..

So I power it down of course, remove the SFP converter from port 26 and put it in port 27. Power it on and it will fully boot..

Power it down again and remove the SFP converter from port 27 and place it in SFP port 28.. Power it on and it will fully boot..

What gives here? So I think to myself maybe I had something wrong here and remove the SFP converter from port 28 and place it back in SFP port 25..

Power it on........... It WILL NOT boot!

So is my switch defective?

So, I tell myself, let's test it in TL-SG3428 (the NON-POE switch)

I do ALL the exact same procedure as above and once again I find that IT WILL NOT BOOT with the converter in SFP port 25.....

This beats all I've seen..

Can anyone tell me what I'm doing wrong or why they will not boot with a converter in SFP port 25?....???

Thanks for your time!

My Devices:

OC200 1.0

Controller Version:

5.0.30

ER7206 v1.0

Firmware Version:

1.2.0 Build 20220117 Rel.74491

TL-SG3428 v2.0

Firmware Version:

2.0.3 Build 20210409 Rel.52950

TL-SG3428MP v2.0

Firmware Version:

2.0.4 Build 20210712 Rel.40355

EAP660 HD(US) v1.0

Firmware Version:

1.1.0 Build 20211027 Rel. 35153

1 Accepted Solution

cbharis

LV1

2022-04-18 13:33:17 - last edited 2022-04-19 02:45:16

Posts: 7

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Registered: 2022-04-07

Re:SFP to RJ-45 converter-Solution

2022-04-18 13:33:17 - last edited 2022-04-19 02:45:16

Just thought I would share my updates with everyone.

The issue was the 10Gtek SFP converters that I purchsed.

Here are the ones I purchased on Amazon.

Here are the official TP-Link ones on Amazon.

In the end, the 10Gtek are not fully compatiable with TP-Link. I will be post a review of this on Amazon.

I got the new TP-Link converters and if I power off the switch and power it back on, it will boot normal.

Thanks for TP-Link for working with me on this!

Recommended Solution

6 Reply

bollman

LV1

2022-04-07 06:06:02 - last edited 2022-04-19 02:45:16

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Registered: 2021-02-22

Re:SFP to RJ-45 converter

2022-04-07 06:06:02 - last edited 2022-04-19 02:45:16

@cbharis Just out of curiosity: why are you rebooting the switch before plugging/unpluggning the SFP? SFPs are hot-plug by design.

Could it be a setting for port 25 that get confused with a copper SFP? Not sure what it would be, but I think TP-Link's official standpoint is that their switches do not support copper SFPs, at least for the SG2210MP I have.

John1234

LV4

2022-04-07 09:57:54 - last edited 2022-04-19 02:45:16

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Registered: 2021-05-21

Re:SFP to RJ-45 converter

2022-04-07 09:57:54 - last edited 2022-04-19 02:45:16

@cbharis

Can you share the model with us? It could be helpful for the support team to look into this. I searched from the guide and datasheet and I cannot tell why this would happen.

BTW, is there any log tells you the port is not working? Any errors? Try the console: https://www.tp-link.com/us/support/faq/291/

While you are connected to the console, the switch is off, the module is in, then boot the switch, will the PC shows errors?

cbharis

LV1

2022-04-07 12:35:17 - last edited 2022-04-19 02:45:16

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Re:SFP to RJ-45 converter

2022-04-07 12:35:17 - last edited 2022-04-19 02:45:16

@John1234 The models were listed above:

TL-SG3428 v2.0

Firmware Version:

2.0.3 Build 20210409 Rel.52950

TL-SG3428MP v2.0

Firmware Version:

2.0.4 Build 20210712 Rel.40355

It doesn't matter which model I am in, they both do the same thing. I thought it was just specific to the "MP" model I just received but they both do the same thing after testing.

Thanks for your time!

cbharis

LV1

2022-04-07 12:37:17 - last edited 2022-04-19 02:45:16

Posts: 7

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Re:SFP to RJ-45 converter

2022-04-07 12:37:17 - last edited 2022-04-19 02:45:16

Thank you.. I didn't know that they were hot-plug by design.

Fae

2022-04-08 00:57:22 - last edited 2022-04-19 02:45:16

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Re:SFP to RJ-45 converter

2022-04-08 00:57:22 - last edited 2022-04-19 02:45:16

Dear @cbharis,

The issue you are experiencing sounds unusual, I'd like to escalate your case to the TP-Link support team for further investigation.

They will reach you via your registered email address shortly, please pay attention to your email box later.

Once the issue is addressed or resolved, I'd encourage you to share it with the community.

Thank you so much for your cooperation and patience!

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*

cbharis

LV1

2022-04-18 13:33:17 - last edited 2022-04-19 02:45:16

Posts: 7

Helpful: 3

Solutions: 1

Stories: 0

Registered: 2022-04-07

Re:SFP to RJ-45 converter-Solution

2022-04-18 13:33:17 - last edited 2022-04-19 02:45:16

Just thought I would share my updates with everyone.

The issue was the 10Gtek SFP converters that I purchsed.

Here are the ones I purchased on Amazon.

Here are the official TP-Link ones on Amazon.

In the end, the 10Gtek are not fully compatiable with TP-Link. I will be post a review of this on Amazon.

I got the new TP-Link converters and if I power off the switch and power it back on, it will boot normal.

Thanks for TP-Link for working with me on this!

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